The wheels bother me a bit - are they right for a Bedford? My immediate reaction was a Chevrolet because of the date. The film was made in 1946, the truck is obviously old - it has the remnants of its wartime white paint on the wings - and wouldn't have been built during the war so it must be pre-1939. It's also got rather a short wheelbase (the WHG was 11 feet). Just to confuse things further early Bedfords used Chevrolet cabs. Question for Chris40: Is that Harry Fowler on the tailgate?!

"The move to Luton, coupled to the introduction of the LQ range with its six-cylinder engine – the famous Stove-bolt Six - proved to be a time for reflection on the whole future of the UK operation.

Chevrolets built at Vauxhall were never branded such. They were ‘Manufactured at the Luton Works of General Motors Ltd’. Chevrolet went on to build a wide variety of very successful body types, including a huge number of buses and coaches, for a number of years alongside the commercial vehicle range from Bedford which were ‘made by Vauxhall Motors Ltd’. An interesting point was that the Bedford was by no means a badge-engineered Chevrolet. There were significant differences in construction although from the point of view of looks, the product was similar.

Bedford and Chevrolet ran alongside, even in 1931 the stand at the Commercial Motor Show jointly publicised both ranges. By 1933, Bedford stood alone at the Commercial Show and became the General Motors leading commercial vehicle brand in the UK."